I have a dozen ipad 2's that are setup using an HTML page for a time clock application. This is not an app, but just a webpage. The vendor uses the website data as some sort of registration code to let the HTML page know it's registered with the payroll company, and is a legit clock for staff to punch into. When we register the clock, it puts an entry in the website data. Anyway, we have had spontaneous instances where the website data gets cleared on it's own. All these HTML "clocks" are locked down with Guided Access to prevent staff from exiting the HTML page so I know nobody is clearing the website data manually. also, this happened one day to 12 of these IPad "clocks" all at once. We have the IPads set to not perform any app or IOS updates automatically. The IPads are running ISO 8.3 or 8.4.
Does anyone know of a circumstance where an IPad/Safari will clear it's website data all by itself?